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CN-122018818-A - Bridging device

CN122018818ACN 122018818 ACN122018818 ACN 122018818ACN-122018818-A

Abstract

The application discloses a bridging device, which comprises a control module and a first storage module, a second storage module and a third storage module which are connected with the control module, wherein the control module is configured to load remapped address data in the first storage module to the second storage module after power-on, the remapped address data comprises a mapping relation between a bad point address of a fourth storage module and a good point address of the third storage module which are externally connected with the bridging device, and the remapped address data in the second storage module is read when the bridging device works so as to realize the reading/writing operation of the data. By the method, the repair and replacement of the dead pixel can be realized under the condition of no capacity reduction, and the reading and writing efficiency of data is improved.

Inventors

  • CHENG ZHEN
  • HAN XIAOBING

Assignees

  • 中山市江波龙电子有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (14)

  1. 1. A bridging device, the bridging device comprising: a first storage module; The second storage module is connected with the first storage module, and the reading and writing speed of the second storage module is higher than that of the first storage module; a third storage module; A control module connecting the first, second, and third storage modules, the control module configured to: After power-on, loading remapped address data in the first storage module to the second storage module, wherein the remapped address data comprises a mapping relation between a bad point address of a fourth storage module and a good point address of the third storage module, which are externally connected with the bridging device; and in operation, reading the remapped address data in the second storage module to realize the reading/writing operation of the data.
  2. 2. The bridging device according to claim 1, characterized in that the bridging device further comprises: The first interface module is connected with the control module and the second storage module and is configured to be connected with an upper computer; A second interface module connecting the control module, the second storage module, and the first interface module and configured to connect the fourth storage module; The control module is configured to obtain a target bad point address in a read/write instruction received by the first interface module, read the remapped address data in the second storage module to find a target good point address corresponding to the target bad point address, and implement a read/write operation of data based on the target good point address.
  3. 3. The bridging device according to claim 2, characterized in that the bridging device further comprises: The first adapting module is connected with the first interface module, stores various interface protocols and is configured to control the first interface module to communicate with the upper computer based on the selected interface protocol; And the second adapting module is connected with the second interface module, stores various interface protocols and is configured to control the second interface module to communicate with the fourth storage module based on the selected interface protocol.
  4. 4. A bridging device according to claim 3, wherein the first and second adaptation modules are connected to the control module, the first and second adaptation modules being configured to select the corresponding interface protocol based on configuration instructions of the control module.
  5. 5. A bridging device according to claim 3, further comprising a registration module, the first and second adaptation modules being connected to the registration module, the first and second adaptation modules being configured to select a corresponding interface protocol based on protocol configuration parameters of the registration module.
  6. 6. The bridging device according to claim 2, characterized in that the bridging device further comprises: a first switching module connected to the first interface module, the first switching module configured to control a sequence of pins of the first interface module; and the second switching module is connected with the second interface module and is configured to control the sequence of pins of the second interface module.
  7. 7. The bridging device of claim 6, wherein the bridge is configured to receive the signal from the communication device, The first switching module comprises a first command pin switching module and a first data pin switching module, the first command pin switching module is configured to control the sequence of command pins of the first interface module, and the first data pin switching module is configured to control the sequence of data pins of the first interface module; The second switching module includes a second command pin switching module configured to control an order of command pins of the second interface module and a second data pin switching module configured to control an order of data pins of the second interface module.
  8. 8. The bridge device of claim 7, further comprising a registration module, the first command pin switching module, the first data pin switching module, the second command pin switching module, and the second data pin switching module being coupled to the registration module, the first command pin switching module and the second command pin switching module being configured to control a command pin order based on command switching configuration parameters of the registration module, the first data pin switching module and the second data pin switching module being configured to control a data pin order based on data switching configuration parameters of the registration module.
  9. 9. The bridge device of claim 1, further comprising a burn interface module coupled to the control module, the control module configured to: Storing the remapped address data obtained by the programming interface module into the first storage module, or And modifying the remapped address data loaded by the second storage module according to the modification mapping data acquired by the burning interface module.
  10. 10. The bridging device of claim 1, further comprising a programming interface module and a registration module, the programming interface module and the registration module being coupled to the control module, the control module being configured to modify the configuration parameters of the registration module based on the configuration parameters obtained by the programming interface module.
  11. 11. The bridge device of claim 1, further comprising a configuration pin module and a registration module, the configuration pin module and the registration module being connected to the control module, the control module being configured to modify configuration parameters of the registration module based on configuration parameters obtained by the configuration pin module.
  12. 12. The bridging device according to claim 1, wherein when the fourth storage module has a dead pixel, the remapped address data includes a mapping relationship between a dead pixel address of the fourth storage module and a dead pixel address of the third storage module; When the fourth storage module has no dead pixel, the remapped address data comprises a mapping relation between a high-order address of the fourth storage module and a good-point address of the third storage module, wherein the high-order address is an address which is sequentially increased beyond the original address of the fourth storage module.
  13. 13. The bridge device of claim 1, wherein the bridge device includes identity information, the identity information being used to represent the defective pixel address data of a fourth memory module bound to the bridge device.
  14. 14. The bridge device of claim 1, wherein the first memory module is one of EFUSE, SPI NOR, or EEPROM, and the second and third memory modules are SRAM.

Description

Bridging device Technical Field The present application relates to the field of storage technologies, and in particular, to a bridging device. Background The structure of the memory device is extremely dense (billions of memory cells), defects are unavoidable in the manufacturing process, and in some application scenarios, redundant memory cells are designed to replace in the original memory device. Taking DRAM (Dynamic Random Access Memory ) as an example, DRAM must be a continuous usable memory unit to successfully read and write data, and once some of the memory units are bad, the continuous memory units must be replaced and maintained, so that the DRAM particles can only be used as defective products beyond the redundancy replaceable range reserved originally. Disclosure of Invention The application mainly solves the technical problem of providing a bridging device which can realize the repair and replacement of dead pixels and improve the read-write efficiency of data under the condition of no capacity reduction. The application provides a bridging device which comprises a first storage module, a second storage module, a third storage module and a control module, wherein the second storage module is connected with the first storage module, the reading and writing speed of the second storage module is higher than that of the first storage module, the control module is connected with the first storage module, the second storage module and the third storage module, the control module is configured to load remapping address data in the first storage module to the second storage module after power-on, the remapping address data comprises the mapping relation between a bad point address of a fourth storage module and a good point address of the third storage module, which are externally connected with the bridging device, and the remapping address data in the second storage module is read to realize the reading/writing operation of the data. In an embodiment, the bridging device further comprises a first interface module, a second interface module, a control module and a control module, wherein the first interface module is connected with the control module and the second storage module and is configured to be connected with an upper computer, the second interface module is connected with the control module, the second storage module and the first interface module and is configured to be connected with a fourth storage module, and the control module is configured to obtain a target bad point address in a read/write instruction received by the first interface module when working, read remapped address data in the second storage module to find a target good point address corresponding to the target bad point address, and realize read/write operation of the data based on the target good point address. In an embodiment, the bridging device further comprises a first adapting module connected with the first interface module, the first adapting module stores multiple interface protocols, the first adapting module is configured to control the first interface module to communicate with the upper computer based on the selected interface protocol, the second adapting module is connected with the second interface module, the second adapting module stores multiple interface protocols, and the second adapting module is configured to control the second interface module to communicate with the fourth storage module based on the selected interface protocol. In an embodiment, the first and second adaptation modules are connected to the control module, the first and second adaptation modules being configured to select the corresponding interface protocol based on configuration instructions of the control module. In an embodiment, the bridging device further comprises a registration module, and the first adaptation module and the second adaptation module are connected to the registration module, and are configured to select the corresponding interface protocol based on the protocol configuration parameters of the registration module. In an embodiment, the bridging device further comprises a first switching module connected to the first interface module, the first switching module being configured to control the order of pins of the first interface module, and a second switching module connected to the second interface module, the second switching module being configured to control the order of pins of the second interface module. In an embodiment, the first switch module comprises a first command pin switch module and a first data pin switch module, the first command pin switch module is configured to control the order of the command pins of the first interface module, the first data pin switch module is configured to control the order of the data pins of the first interface module, the second switch module comprises a second command pin switch module and a second data pin switch module, the second command pin switch module is